# Periods

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Periods are a core concept in Phocas. Read the Phocas basics > [Periods page](https://app.gitbook.com/s/7pj8v25BOyqZTdG5mdD1/getting-started/periods) to learn more about the **Period** menu in Phocas and the different types of periods. 
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As an administrator, you can carry out the following period-related tasks for your Phocas site:

<table><thead><tr><th width="427">Task</th><th>Administration permission required</th></tr></thead><tbody><tr><td>Manage the <a href="periods-administration/period-types">period types</a> for your Phocas site and the <a href="designer/modify-a-database">period types in each database</a> </td><td>Period Types, Databases and Sync</td></tr><tr><td>Set the <a href="../databases-administration#set-defined-periods-for-a-database">defined periods</a> in each database</td><td>Databases</td></tr><tr><td>Manage <a href="periods-administration/working-days">working day calendars</a> for your Phocas site</td><td>Working Days</td></tr></tbody></table>